Add 12/75 and 42/45
12/75 + 42/45 is 82/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
12/75 = 12 × 3/75 × 3 = 36/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
42/45 = 42 × 5/45 × 5 = 210/225 - Add the two like fractions:
36/225 + 210/225 = 36 + 210/225 = 246/225 - 246/225 simplified gives 82/75
- So, 12/75 + 42/45 = 82/75
In mixed form: 17/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/75+42/45 12/75+84/45 12/75+42/90 36/75+42/45 60/75+42/45 84/75+42/45